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Sub-nanosecond one-way real-time time service system based on UTC

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Abstract

Coordinated Universal Time (UTC) is the worldwide standard of time, and UTC (k) is its physical implementation by any participating laboratory k. We describe a one-way real-time time service system that relies on GNSS to provide a realization UTC (NTSC) of China’s National Time Service Center, to a precision of sub-nanosecond. The system is inexpensive, easy to implement, and has been tested.

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Data availability

The data used to support the findings of this study are available from the corresponding author upon request.

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Acknowledgments

This study was funded by the National Nature Science Foundation of China, grant number 12003041,and CAS "Light of West China" Program, grant number XAB2018B19. We would like to thank IGS and iGMAS for providing GNSS products and data. Special thanks are due to NTSC for providing the computing platform, one of the iGMAS analysis centers. We acknowledge the data resources from “National Space Science Data Center, National Science and Technology Infrastructure of China (http://www.nssdc.ac.cn).”

Funding

This study was funded by the National Nature Science Foundation of China, grant number 12003041, and CAS "Light of West China" Program, Grant Number XAB2018B19.

Author information

Authors and Affiliations

  1. National Time Service Center, Chinese Academy of Sciences, Xian, 710600, China

    Meifang Wu, Baoqi Sun, Yuanxin Wang, Zhe Zhang, Hang Su & Xuhai Yang

  2. University of Chinese Academy of Sciences, Beijing, 100049, China

    Baoqi Sun, Yuanxin Wang, Zhe Zhang, Hang Su & Xuhai Yang

  3. Key Laboratory of Precise Positioning and Timing Technology, Chinese Academy of Sciences, Xian, 710600, China

    Meifang Wu, Baoqi Sun, Yuanxin Wang, Zhe Zhang, Hang Su & Xuhai Yang

Authors
  1. Meifang Wu
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  2. Baoqi Sun
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  3. Yuanxin Wang
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  4. Zhe Zhang
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  5. Hang Su
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  6. Xuhai Yang
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Contributions

Meifang Wu and Baoqi Sun designed the work, Yuanxin Wang contributed to the orbit product generation, Zhe zhang contributed to the communication Network construction, Xu hai Yang contributed to the construction of the prototype system, Meifang Wu contributed to the writing of the paper. Hang Su checked the paper serval times. All authors have read and agreed to the published version of the manuscript.

Corresponding author

Correspondence to Meifang Wu.

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The authors declare that they have no conflict of interest.

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The code used is available from the corresponding author on reasonable request.

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Cite this article

Wu, M., Sun, B., Wang, Y. et al. Sub-nanosecond one-way real-time time service system based on UTC. GPS Solut 25, 44 (2021). https://doi.org/10.1007/s10291-021-01089-z

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  • DOI: https://doi.org/10.1007/s10291-021-01089-z

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